17=4(u+3)+9

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Solution for 17=4(u+3)+9 equation:


Simplifying
17 = 4(u + 3) + 9

Reorder the terms:
17 = 4(3 + u) + 9
17 = (3 * 4 + u * 4) + 9
17 = (12 + 4u) + 9

Reorder the terms:
17 = 12 + 9 + 4u

Combine like terms: 12 + 9 = 21
17 = 21 + 4u

Solving
17 = 21 + 4u

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Add '-4u' to each side of the equation.
17 + -4u = 21 + 4u + -4u

Combine like terms: 4u + -4u = 0
17 + -4u = 21 + 0
17 + -4u = 21

Add '-17' to each side of the equation.
17 + -17 + -4u = 21 + -17

Combine like terms: 17 + -17 = 0
0 + -4u = 21 + -17
-4u = 21 + -17

Combine like terms: 21 + -17 = 4
-4u = 4

Divide each side by '-4'.
u = -1

Simplifying
u = -1

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